Enviaments recents

  • Prediction system for the anticipation of Space Weather events affecting ionosphere and GNSS satellite systems 

    García Rigo, Alberto; Nuñez, Marlon; Qahwaji, Rami; Ashamari, Omar W; Jiggens, Piers; Pérez, Gustau; Hernández Pajares, Manuel; Hilgers, Alain (European Space Agency (ESA), 2015)
    Comunicació de congrés
    Accés obert
    The solar activity can be considered one of the main sources of hazards not only affecting launch operations but also the reliability of Global Navigation Satellite Systems (GNSS), such as Galileo, and Satellite Based ...
  • Space Weather Prediction System providing forecasts and alerts on solar flares and SEP events 

    García Rigo, Alberto; Nuñez, Marlon; Qahwaji, Rami; Ashamari, Omar W; Jiggens, Piers; Pérez, Gustau; Hernández Pajares, Manuel; Hilgers, Alain (2015)
    Comunicació de congrés
    Accés obert
    A web-based prototype system for predicting Solar Flares and Solar Energetic Particle (SEP) events for its use by space launcher operators or any interested user has been implemented. The main goal of this system, called ...
  • Real-time global ionospheric modelling from GNSS data with RT-TOMION model 

    Roma Dollase, David; López Cama, José María; Hernández Pajares, Manuel; García Rigo, Alberto (European Space Agency (ESA), 2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    As it is well known, the ionosphere, the region of the atmosphere between 50 and 1000 km height approximately containing the most part of its free electrons, has an important effect on Global Navigation Satellite System ...
  • MONITOR - Ionospheric Monitoring System: An Analysis of Perturbed Days Affecting SBAS Performance 

    Hernández Pajares, Manuel; Prieto Cerdeira, Roberto; Beniguel, Yannick; García Rigo, Alberto; Kinrade, J; Kauristie, Kirsti; Orús Pérez, Raul; Schlüter, S.; Serant, Damien; Nava, Bruno; Krankowski, Andrzej; Secretan, Hugues; Sampedro Casis, Rodrigo; Prats, Xavier (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The Monitor project has been designed to monitor ionospheric events that would allow evaluating its impact on European GNSS Systems. It includes a network of ionospheric scintillation monitoring stations in various locations ...
  • MONITOR Ionospheric Monitoring System: GNSS performance estimation 

    Beniguel, Yannick; Hernández Pajares, Manuel; García Rigo, Alberto; Orús Pérez, Raul; Prieto Cerdeira, Roberto; Schlueter, Stefan; Secretan, Hugues; Monnerat, Michel; Serant, Damien (2015)
    Text en actes de congrés
    Accés obert
    MONITOR is a project from the European Space Agency’s GNSS Evolutions Programme started in 2010, dedicated to the collection of data and products during active periods of solar activity for later understanding of the impact ...
  • Improved MSTID modelling and impact on precise GNSS processing 

    Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Stepniak, Katarzyna; Bosy, Jaroslaw; Kaplon, Jan; Hadas, Tomasz; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; Olivares Pulido, Germán; García Rigo, Alberto (2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • Ionospheric corrections for precise positioning with single-frequency GNSS receivers, a long distance away from the nearest network receiver 

    Colombo, Oscar L.; Hernández Pajares, Manuel; Janssen, Volker (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We intend to present results of a study where precise ionospheric corrections have been generated and then used to assist Global Navigation Satellite System (GNSS) positioning with data from high-end single-frequency ...
  • Modelling and assessing ionospheric higher order terms for GNSS signals 

    Aragón Àngel, Angela; Hernández Pajares, Manuel; Defraigne, Pascale; Bergeot, Nicolas; Prieto Cerdeira, Roberto (2015)
    Text en actes de congrés
    Accés obert
    High precision positioning and time transfer are required by a large number of scientific applications: seismic ground deformations, sea level monitoring or land survey applications require sub-centimeter precision in ...
  • Inputs received from Ionospheric research groups on activities related with RT global electron content determination 

    Hernández Pajares, Manuel (2014)
    Text en actes de congrés
    Accés obert
  • Towards an optimal overall description of electron density information gathered during GNSS satellite occultations 

    Olivares Pulido, Germán; Hernández Pajares, Manuel; Limberger, Marco; García Rigo, Alberto; Aragón-Angel, Angela; Schmidt, Michael; Hugentobler, U (2014)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The purpose of this work is to characterize the performance of different interpolation methods in order to build a global model of ionospheric free electron density, directly derived from the inversions of GNSS occultation ...

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